This might not be exact, but its close as dammit and will give you a good idea of whats going on.
Standard tuning.
Intro
G:---------------------|
D:-7-7-7-7-7-7-7-7-7-7-|
A:---------------------|
E:5-5-5-5-5-5-5-5-5-5--|
Do this for aslong as needed
Verse/Main Riff
G:---------------------------------|
D:---------------------------8-8-8-|
A:---------------------------------| (Repeat as needed)
E:555-555-555-666-555-555-555------|
G:------------------------------------|
D:------------------------------------|
A:---------------------------55443322-|
E:555-555-555-666-555-555-555---------|
Chorus's
G:------------------------------------------------|
D:------------------------------------------------|
A:------------------------------------------------|
E:5-5-5-5-5-5-5-5-1-1-1-1-1-1-1-1-3-3-3-3-3-3-3-3-|
G:------------------------------------------------|
D:------------------------------------------------|
A:--------------------------------5-5-5-5-5-5-5-5-|
E:1-1-1-1-1-1-1-1-3-3-3-3-3-3-3-3-----------------|
Like i said, its not 100%
Hope this works for you :)
Rusty